The question of hepatic or ubiquitous versus erythropoietic origin of the excessive porphyrin in porphyria congenita erythropoietica.
D000328:Adult; D001853:Bone Marrow / Q000378:metabolism*; D001854:Bone Marrow Cells; D002675:Child, Preschool; D006801:Humans; D008099:Liver / Q000378:metabolism*; D011164:Porphyrias; D011166:Porphyrins / Q000096:biosynthesis*
D011166:Porphyrins